Quite splendid and surprisingly good British film with marvellous and evocative location shooting, mainly in and around the Tower Bridge and the docks. Fast moving, with decent story, well acted and directed, I am amazed I have never come across this before. Living in Greenwich, I was particularly thrilled to see a sequence shot in the Maritime Museum plus a shot which included a glimpse of what looked like a derelict observatory, certainly not surrounded by tourists as it is today. Also great to see the power station billowing smoke and absolutely no docklands development beyond. Earl Cameron plays the West Indian sailor who is shown getting pretty close to the action, even if he is considered, 'Just like all the rest.' Good to see he has continued to work right up to the present. Unlike the co-lead, very popular in his day apparently, Bonar Colleano, who died in a motor accident eight years after making this. Not a 'noir' as some have suggested, but a rattling good yarn and if you are interested in a glimpse of early post-war London, trams and all, this is a must.